content: /*
   * Copyright 2017 David Karnok
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package hu.akarnokd.reactive4javaflow.impl.operators;
  
  import hu.akarnokd.reactive4javaflow.*;
  import org.junit.Test;
  
  import java.io.IOException;
  import java.util.concurrent.CompletableFuture;
  
  public class FolyamCompletionStageTest {
  
      @Test
      public void standard() {
          CompletableFuture<Integer> cf = CompletableFuture.completedFuture(1);
          TestHelper.assertResult(Folyam.fromCompletionStage(cf), 1);
      }
  
      @Test
      public void error() {
          CompletableFuture<Integer> cf = CompletableFuture.failedFuture(new IOException());
  
          Folyam.fromCompletionStage(cf)
                  .test()
                  .assertFailure(IOException.class);
      }
  
  
      @Test
      public void empty() {
          CompletableFuture<Integer> cf = CompletableFuture.completedFuture(null);
  
          Folyam.fromCompletionStage(cf)
                  .test()
                  .assertResult();
      }
  
      @Test
      public void cancel() {
          CompletableFuture<Integer> cf = new CompletableFuture<>();
  
          TestConsumer<Integer> ts = Folyam.fromCompletionStage(cf)
                  .test()
                  .cancel();
  
          cf.complete(1);
  
          ts.assertEmpty();
      }
  }
  